- Branża: Mining
- Number of terms: 33118
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- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
A chute, usually used to charge stoker hoppers, so designed as to deliver coal in a mixed state rather than having the large lumps tend to be deposited separate from the fine.
Industry:Mining
A circuit breaker that recloses automatically as soon as the demand for current becomes equal to or less than that for which the circuit breaker is set.
Industry:Mining
A circuit having a number of states of electrical condition (which are either stable or quasi-stable) or that is unstable with at least one stable state and so designed that a desired transition can be initiated by the application of a suitable trigger excitation. By quasi-stable state is meant a state that persists during the time of interest.
Industry:Mining
A circuit in which any electrical sparking that may occur in normal working under the conditions specified by the certifying authority, and with the prescribed components, is incapable of causing an ignition of the prescribed flammable gas or vapor.
Industry:Mining
A circuit that employs two or more rectifying elements with a conducting period of 180 electrical degrees, plus the commutating angle.
Industry:Mining
A circuit whose output is substantially proportional to the time integral of the input.
Industry:Mining
A circular depression in a karst area. Its drainage is subterranean, its size is measured in meters or tens of meters, and it is commonly funnel shaped.
Industry:Mining
A circular depression in a karst area. Its drainage is subterranean, its size is measured in meters or tens of meters, and it is commonly funnel shaped.
Industry:Mining
A circular depression in a karst area. Its drainage is subterranean, its size is measured in meters or tens of meters, and it is commonly funnel shaped.
Industry:Mining
A circular depression in a karst area. Its drainage is subterranean, its size is measured in meters or tens of meters, and it is commonly funnel shaped.
Industry:Mining
